<!DOCTYPE html>
<html>
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <meta http-equiv="X-UA-Compatible" content="ie=edge">
  <meta name="viewport"
        content="width=device-width,initial-scale=1.0,minimum-scale=1,maximum-scale=1,user-scalable=no"/>
  <title>意见反馈</title>
</head>
<body>
<div id="App"></div>
<style>
  body {
    background-color: #F5F5F5;
  }
</style>
</body>
</html>